libexec/rtld-elf/xmalloc.c

   1 /*-
   2  * Copyright 1996-1998 John D. Polstra.
   3  * All rights reserved.
   4  *
   5  * Redistribution and use in source and binary forms, with or without
   6  * modification, are permitted provided that the following conditions
   7  * are met:
   8  * 1. Redistributions of source code must retain the above copyright
   9  *    notice, this list of conditions and the following disclaimer.
  10  * 2. Redistributions in binary form must reproduce the above copyright
  11  *    notice, this list of conditions and the following disclaimer in the
  12  *    documentation and/or other materials provided with the distribution.
  13  *
  14  * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
  15  * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
  16  * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
  17  * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
  18  * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
  19  * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
  20  * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
  21  * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
  22  * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
  23  * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
  24  *
  25  * $FreeBSD: src/libexec/rtld-elf/xmalloc.c,v 1.2 1999/08/28 00:10:11 peter Exp $
  26  * $DragonFly: src/libexec/rtld-elf/xmalloc.c,v 1.4 2005/03/30 00:56:02 joerg Exp $
  27  */
  28
  29 #include <err.h>
  30 #include <stddef.h>
  31 #include <stdlib.h>
  32 #include <string.h>
  33
  34 void    *xcalloc(size_t);
  35 void    *xmalloc(size_t);
  36 void    *xrealloc(void *, size_t);
  37 char    *xstrdup(const char *);
  38
  39 void *
  40 xcalloc(size_t size)
  41 {
  42     return memset(xmalloc(size), 0, size);
  43 }
  44
  45 void *
  46 xmalloc(size_t size)
  47 {
  48     void *p = malloc(size);
  49     if (p == NULL)
  50         err(1, "Out of memory");
  51     return p;
  52 }
  53
  54 void *
  55 xrealloc(void *cp, size_t nbytes)
  56 {
  57     void *p = realloc(cp, nbytes);
  58     if (p == NULL)
  59         err(1, "Out of memory");
  60     return p;
  61 }
  62
  63 char *
  64 xstrdup(const char *s)
  65 {
  66     char *p = strdup(s);
  67     if (p == NULL)
  68         err(1, "Out of memory");
  69     return p;
  70 }